SnugFleece SnugSoft Elite Wool Mattress Topper Pad Cover TWIN SIZE 39 X 75 Wool Made in USA SnugSoft is Machine Washable! The SnugSoft Elite is the thickest of the machine washable models at 1.5 In. Wool Pile Height. The Snugsoft line, due to its machine wash-ability, makes it ideal for infants, children and the elderly. Comes with 2 In. corner straps. Machine wash in cold water and machine dry on low, or line dry. Most of the plushness and wool height (1.5 Inches) of the Original and SnugFleece, but with the added convenience of machine wash-ability.